I wanted to ask for a bit of your wisdom. As you can tell by the title this is in regards to Amazon merch. I recently got accepted, and I submitted 10 simple text designs. My question is how long do I give each shirt to generate sales before I deem the design not profitable and switch it out? And what kind of designs sell better; simple text, or graphic cartoon? I really hope to hear back from you. It would greatly help me out in my journey. Thank you for your time.